Pocket-window



E. H. LUNKEN.

POCKET WINDOW.

APPLICATION FILED JUNE 11, 1919.

Patented Apr. 6, 1920.

INVENTO M 1? DEM/{CM ATTORNEY UNITED STATES PATENT OFFICE.

EDMUND H. LUNKEN, OF CINCINNATI, OHIO.

POCKET-WINDOW.

Application filed June 1?, 1919.

To all whom it may concern.

Be it known that I, EDMUND H. LUNKEN, a citizen of the United States,and a resident of the city of Cincinnati in the county of Hamilton andState of ()hio, have invented certain new and useful Improvements inPocket lVindows, of which the following is a full, clear, and exactdescrip tion, reference being had to the drawings accompanying thisspecification.

My invention relates to pocket windows of the type wherein the sashesslide under suitable counterba ancing weights and are adapted to bemoved into a pocket adjacent the window opening.

The object of this invention broadly stated is to provide a doublepocket window of the above type, wherein there are two sets of sashes,or two sashes side by side, and it is desired to economize in space tothe greatest possible extent.

I have found that in a properly constructed window there is no absolutenecessity for counterbalancing weights for both sides of the windowprovided the pull or" push exerted against the window is properlydirected, and according to my invention this discovery is employed inthe construction of a double pocket window where there is the necessityof great saving of lateral space. The principle of my invention istherefore to provide a window which has two sashes or more located sideby side, with a narrow intervening separating strip, and counterbalancethe said sashes on the outer side only and not at the meeting sidesthereof. It is also, to provide for means to direct or force theoperator to pull up on the windows at the sides opposite thecounterbalancing weights.

.Vhile this invention is more particularly adapted for use with pocketwindows, it is also adapted for use in the ordinary window. The use inpocket windows, is particularly advantageous because it readily enablesme to provide a unit construction, adapted for shipment as a package,with the sash positioned and held in the pockets, all as specificallyset forth in my Patent No. 1285269, dated November 19, 1918.

In the drawings,

Figure 1 is a vertical cross section taken through a double windowconstructed according to-my invention.

Specification of Letters Patent.

Patented Apr. 6, 1920.

Seria1 No. 304,828.

Fig. 2 is a detail horizontal section therethrough.

Fig. 3 is a detail prospective of a modified window pull Fig. 4 is adetail perspective of the roller, used for antifriction on the sides ofthe shades opposite the weights.

In the adaptation of inv invention shown in the drawings 1 indicate aunit double window construction, having a pocket at the upper end of thewindow opening. The construction has two sash weight boxes, having theouter boards 1 and the inner boards 2, both extending throughout thewindow opening and the pocket. There is a top board 3 to the pocket, acap trim l for the window opening and a sill 5. Extending throughout thewindow opening and the pocket, through the center thereof is a dividingboard 6, which serves as a stile for the sashes in both sections of thewindow. The inner boards 2 of the weight boxes serve as the outer stilesfor the sashes, according to normal methods of construction and thepocket and weight boxes are closed by suitable boards.

There are pulleys 7 located in the upper end of the boards or stiles 2and in the side boxes are the weights 8 and 9 for the upper and lower ofboth sets of sashes, which have proper weight cords for attachment tothe outside upper end of the sashes.

It should be noted that by the words outside and inside in thisspecification is meant the portions away from the center of the windowand adjacent the center of the window, rather than the indoor andoutdoor portions of the window.

As shown there are two sashes in each section of the double window. theupper sash indicated at 10 and the lower sashes at 11. I prefer tocountersink into the inner, upper edges of each sash an antifrictionroller 12, which bears against the stile formed by the dividing board.This however, may be omitted since the window will operate without theantifriction device, although not so perfectly.

In order to direct or force the operator to impart the proper thrust orgive the proper pull to the sashes, I provide lifts 13, for the lowersashes, which have inscribed thereon the words down on the outer side,and up on the inner side for each sash.

Thus the operator will lift the lower sashes on the side opposite thecounterbalancing weight, thereby relieving the sashes of the necessityof a weight on the inner side, since the Weight is sufficient to relievethe strain throughout the entire window. The operator by lifting on theside opposite the weight really does no more than prevent the sash fromcanting' sidewise in the frame and wedging into a stationary position.The antifriction rollers also located on the sides opposite the weightstend to prevent this binding action.

' Upon the downward pull the tendency of the weights are to cant thesash toward the center of the window, and thus the pull is directed ,tothe outer side of the sashes in the line of the counterbalancing weight.

In another modification of the device, I rely not, only upon the noticeimpressed upon the sash lifts, but provide special socket lifts (Fig.3). The up lift 1 1 has a sloping base, and a horizontal top and thedown lift 15 has a sloping top and a horizontal base. The operatorsfingers will slide out of the down lift, if he attempts to apply forcethereto in lifting the sash, and vice versa with regard to the up lift,since only engagement that can be made by the fingers is with thehorizontal portions of the two lifts.

It will be noted that there is provided for each sash both upper andlower, locking pins 15, which engage in sockets in the outer sashstiles. As noted in Fig. 1, the tendency of the sashes are to cantside'wise after they have been pulled down, due to the effect of theuneven counterbalancing, and thus the locking pins are a necessaryportion of the combined structure, since they will hold the sashes in alevel closed position. It isnot essential that the pins be spring pins,although they may be made with springsso as to automatically find theirsockets when the sashes are properly positioned.

The entire unit, when made up is capable of being shipped as a packagewith the sashes counterbalanced and positioned in the pocket, as shownin my patent heretofore referred to.

There is no necessity for indications or special lifts for the uppersashes, when such are used, because the operator will fice to describethe non-pocket type, leaving entirely out of consideration the pocketpor- 'tlOIl as now described. In a single window there would be but oneweight box, if my invention were employed.

The narrowness of the double window, is very marked, and will providethe maximum opening and maximum light for a given space in a building.The width of two sash weight boxes is done away with altogether, and thewhole structure is pleasing to the eye, and surprisingly easy inoperation.

I do not wish to be limited to double or pocket windows.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is 7 1. In a window, the combination with aframe, of window sashes located on each side in said frame and sashweights for counterbalancing the sashes on the outside only, said sasheshaving lifts adapted to prevent the operator from applying pressure tothe side adjacent the weights in lifting the window. 7 V

2. The combination with a window frame of a sash slidable therein, acounterbalancing weight and cord for one side only of the sash, andmeans for directing the operator in raising the sash to exert pressureon the oppositeside from the weight, and on lowering the sash to exertpressure 011 the same side as the weight, and locking pins on the sideof the sash adjacent the EDMUND 1-1. LUNKEN.

